Pushrod, lifter, valve, etc. PROBLEM., Daily Driver emergency! |
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Pushrod, lifter, valve, etc. PROBLEM., Daily Driver emergency! |
ripper911 |
May 9 2016, 06:18 PM
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#1
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corde pulsum tangite Group: Members Posts: 2,920 Joined: 25-April 10 From: Powder Springs, GA Member No.: 11,654 Region Association: South East States |
I went to perform a valve adjustment and the exhaust valve on #4 wouldn't tighten. I got frustrated and called in a travelling 914 mechanic.
The screw was binding in the rocker, but he got it tightened enough to try to adjust. It wasn't moving while turning the engine. I was left with instructions to pull the rockers and check the pushrod as it might be bent. I pulled the pushed out, and it looks pretty straight to me, so he said to pull the lifter out with a magnet and inspect it. This is where I'm stuck. I was having trouble with my extendable magnet extending and collapsing while trying to pull the lifter out. I bought some new magnets, but I'm still not having any luck. The mechanic said that it takes some finessing to get out. Is there a trick to it? What makes it worse is that I have been using one of my boss's cars in the meantime, but they're selling the business (closing on sale Wednesday) so I need to give the car back. I'll get the mechanic back over here soon, but going on my knowledge of the car, if the pushrod isn't bent, and if the lifter turns out to be OK, then it won't be something I can fix over the weekend. Help... (IMG:style_emoticons/default/unsure.gif) |
Jake Raby |
May 9 2016, 10:02 PM
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#2
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Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
The lifter won't slide through the bore, for removal, because its failing. The face of the lifter has become mushroomed due to wear, and has created a burr around the OD thats retaining it.
The reason why the valve adjuster wouldn't reduce the amount of clearance, is also because the lifter is failing. The cam lobe has been injured, too. What oil have you been running? |
ripper911 |
May 10 2016, 05:11 AM
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#3
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corde pulsum tangite Group: Members Posts: 2,920 Joined: 25-April 10 From: Powder Springs, GA Member No.: 11,654 Region Association: South East States |
The lifter won't slide through the bore, for removal, because its failing. The face of the lifter has become mushroomed due to wear, and has created a burr around the OD thats retaining it. The reason why the valve adjuster wouldn't reduce the amount of clearance, is also because the lifter is failing. The cam lobe has been injured, too. What oil have you been running? VR1 20w-50. It does have some leaks, and occasionally gets low, but I only drive it about 10 miles per day. It started backfiring badly about a week before I started this ordeal, I kept cleaning my jets and adjusting the points to keep it running (the usual suspects) but it was obviously time for some real work. So... I need to lower the engine and pull the tube to get the lifter out and replace it? |
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